package com.itheima.mapper;

import com.itheima.pojo.Emp;
import org.apache.ibatis.annotations.*;

import java.time.LocalDate;
import java.util.List;

@Mapper
public interface EmpMapper {

    /*
    *  查询总记录数
    * */
    @Select("select count(*) from emp ")
    public Long count();

    /*
    *  进行分页查询 获取列表数据
    * */
//    @Select("select * from emp limit #{start},#{pageSize}")
//    public List<Emp> page(Integer start, Integer pageSize);

    /*
    *  员工信息查询
    * */
//    @Select("select * from emp ")
    public List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);


    /*
    * 删除员工
    * */
    void delete(List<Integer> ids);

    /*
    * 新增员工
    * */
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time) " +
            "VALUES (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);

    /*
    * 根据ID查询员工
    * */
    @Select("select * from emp where id = #{id}")
    Emp findById(Integer id);

    /*
    * 修改员工的数据信息
    * */
//    @Update("update emp set username=#{username},name=#{name},gender=#{gender},update_time=#{updateTime} where id=#{id}")
    void update(Emp emp);

    /*
    *  根据用户名和密码查询员工
    * */
    @Select("select * from emp where username = #{username} and password = #{password}")
    Emp getByUsernameAndPassword(Emp emp);

    /*
    * 根据部门ID删除员工
    * */
    @Delete("delete from emp where dept_id = #{deptId}")
    void deleteByDeptId(Integer deptId);

}
